01: /*
02: * $Id: Regexp.java,v 1.1 2003/08/17 06:06:11 ajzeneski Exp $
03: *
04: * Copyright (c) 2001, 2002 The Open For Business Project - www.ofbiz.org
05: *
06: * Permission is hereby granted, free of charge, to any person obtaining a
07: * copy of this software and associated documentation files (the "Software"),
08: * to deal in the Software without restriction, including without limitation
09: * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10: * and/or sell copies of the Software, and to permit persons to whom the
11: * Software is furnished to do so, subject to the following conditions:
12: *
13: * The above copyright notice and this permission notice shall be included
14: * in all copies or substantial portions of the Software.
15: *
16: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17: * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18: * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19: * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
20: * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
21: * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
22: * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23: */
24: package org.ofbiz.minilang.operation;
25:
26: import java.util.*;
27:
28: import org.apache.oro.text.regex.*;
29: import org.w3c.dom.*;
30:
31: import org.ofbiz.base.util.*;
32:
33: /**
34: * Validates the current field using a regular expression
35: *
36: * @author <a href="mailto:jonesde@ofbiz.org">David E. Jones</a>
37: * @version $Revision: 1.1 $
38: * @since 2.0
39: */
40: public class Regexp extends SimpleMapOperation {
41:
42: public static final String module = Regexp.class.getName();
43:
44: static PatternMatcher matcher = new Perl5Matcher();
45: static PatternCompiler compiler = new Perl5Compiler();
46: Pattern pattern = null;
47: String expr;
48:
49: public Regexp(Element element, SimpleMapProcess simpleMapProcess) {
50: super (element, simpleMapProcess);
51: expr = element.getAttribute("expr");
52: try {
53: pattern = compiler.compile(expr);
54: } catch (MalformedPatternException e) {
55: Debug.logError(e, module);
56: }
57: }
58:
59: public void exec(Map inMap, Map results, List messages,
60: Locale locale, ClassLoader loader) {
61: Object obj = inMap.get(fieldName);
62:
63: String fieldValue = null;
64:
65: try {
66: fieldValue = (String) ObjectType.simpleTypeConvert(obj,
67: "String", null, locale);
68: } catch (GeneralException e) {
69: messages
70: .add("Could not convert field value for comparison: "
71: + e.getMessage());
72: return;
73: }
74:
75: if (pattern == null) {
76: messages.add("Could not compile regular expression \""
77: + expr + "\" for validation");
78: return;
79: }
80:
81: if (!matcher.matches(fieldValue, pattern)) {
82: addMessage(messages, loader);
83: }
84: }
85: }
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